酸雨对杨树生长特性的影响

The effects of acid rain on tree growth of Populus ×euramericana

对受酸雨危害和未受酸雨危害的杨树进行了对比研究 ,结果表明 :酸雨对杨树生长特性产生了很大的影响。受害杨树表现出典型的酸雨危害症状 ,受害杨树的年轮宽度、胸径。

Disease symptoms,radial increment and biomass of poplar( Populus×euramericana) selected from healthy and acid rain damaged forest were analysed to evaluate the effects of acid rain on tree growth.The typical symptoms on the leaves of diseased poplar were observed.Acid rain caused the radial increment and height growth of diseased poplar to decrease,and led to the decrease of above ground biomass and the production capacity of diseased forest.